.bgc {
  background-color: #222d32;
}
.test {
  width: 200px;
  height: 50px;
  background-color: pink;
}
.mt {
  margin-top: 150px;
}

.lt-aside {
  width: 180px;
  height: 100%;
  background-color: #222d32;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2;
  .lt-title {
    a {
      text-decoration: none;
      display: block;
      line-height: 50px;
      background-color: #3c8dbc;
      color: #fff;
      font-size: 24px;
    }
  }
  .lt-tu {
    a {
      display: block;
      img {
        width: 100px;
        height: 100px;
        border-radius: 50%;
        margin-top: 50px;
      }
    }
    p {
      margin-top: 20px;
      margin-bottom: 20px;
      color: #fff;
      font-size: 18px;
    }
  }
  .lt-list {
    li {
      list-style: none;
      a {
        text-decoration: none;
        color: #fff;
        height: 40px;
        line-height: 40px;
      }
      ul {
        padding-left: 20px;
        display: none;
        li {
          a {
            text-decoration: none;
          }
        }
      }
    }
  }
}
.lt-main {
  width: 100%;
  height: 1000px;
  padding-left: 195px;
  margin-top: 80px;
  padding-right: 15px;
}
.lt-top {
  width: 100%;
  height: 50px;
  background-color: #3c8dbc;
  position: fixed;
  top: 0;
  left: 0px;
  a {
    line-height: 50px;
    font-size: 18px;
    color: #fff;
  }
}
.pd-180 {
  padding-left: 180px;
}
.lf-180 {
  left: -180px;
}
.pd {
  padding-left: 15px;
}
.ts {
  transition: all 0.5s;
}
.mt-20 {
  margin-top: 20px;
}
th {
  text-align: center;
}
